Cable management assembly, system and method

ABSTRACT

A cable management assembly, and method related thereto, including a riser panel having an interface portion and a plurality of cable management devices. The interface portion having a plurality of shaped apertures. The cable management devices having attachments that correspond to the shaped apertures to secure the cable management devices to the panel at selected vertical and horizontal locations. The cable management assembly being configured to extend between two adjacent telecommunications racks or to couple to the end of a telecommunications rack.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of application Ser. No. 12/380,287,filed Feb. 25, 2009, now U.S. Pat. No. 7,748,541; which is acontinuation of application Ser. No. 11/998,169 filed Nov. 27, 2007, nowU.S. Pat. No. 7,513,374; which is a continuation of application Ser. No.11/450,191, filed Jun. 8, 2006, now U.S. Pat. No. 7,331,473; which is adivisional of application Ser. No. 10/295,169, filed Nov. 15, 2002, nowU.S. Pat. No. 7,083,051; which applications are incorporated herein byreference.

TECHNICAL FIELD

The present invention relates generally to devices and methods forenhancing cable management of a telecommunications system. Moreparticularly, the present invention relates to a cable management panelfor use in telecommunications systems.

BACKGROUND

Telecommunications systems commonly include cables (e.g., fiber opticcables or copper twisted pair cables) for interconnecting pieces oftelecommunications equipment. Telecommunications racks typically hold avariety of different pieces of telecommunications equipment. Oftenthousands of cables are used to interconnect the various pieces oftelecommunications equipment mounted on the racks.

Because of the large number of cables associated with telecommunicationsequipment, cable management is crucial. Cable management involvesefficiently routing cables to minimize the space occupied by suchcables. Cable management also involves routing cables in an orderlymanner so as to reduce the likelihood of cable tangling. Ease of cableorganization is also a factor related to effective cable management.

Cable management is also important in preventing damage to the cables.Unnecessary or excessive displacement of fiber optic cables, forexample, is undesirable. As the fiber optic cables are displaced, theyare subject to bending and other forces. Bending of the fibers can causeattenuation and loss of signal strength. As the fiber bends, the fibercan also break, resulting in a loss of transmission through the fiber.

In general, cable management improvement has been sought, generally toefficiently and effectively manage cables by providing systemadaptability, and ease of cable organization.

SUMMARY

One aspect of the present invention relates to a cable managementassembly including a panel having a plurality of shaped apertures and aplurality of cable management devices. The cable management deviceincludes attachments corresponding to the shaped apertures that securethe cable management devices to the panel at selected horizontal andvertical locations.

Another aspect of the present invention relates to a telecommunicationscable management system including at least a first telecommunicationrack and the cable management assembly. The cable management assemblycan extend between adjacent telecommunication racks and include a firstinterface plane, or connect to an end of a telecommunications rack andinclude first, second and third interface planes.

Yet another aspect of the present invention relates to a cablemanagement assembly including a panel having a plurality of discreteopenings. Cable management devices of the assembly have protrusions thatconnect to the panel by insertion of the protrusions into the discreteopenings from one side of the panel.

Still another aspect of the present invention relates to a method ofassembling a cable management system including selecting a cablemanagement device from a plurality of devices, selecting a placementcoordinate along a panel, and securing the selected cable managementdevice to the panel.

A variety of aspects of the invention are set forth in part in thedescription that follows, and in part will be apparent from thedescription, or may be learned by practicing various aspects of thedisclosure. The aspects of the disclosure may relate to individualfeatures as well as combinations of features. It is to be understoodthat both the foregoing general description and the following detaileddescription are exemplary and explanatory only, and are not restrictiveof the claimed invention.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a front perspective view of one embodiment of a cablemanagement system in accord with the principles of the presentdisclosure;

FIG. 2 is an enlarged front perspective view of one embodiment of acable management assembly shown in FIG. 1;

FIG. 3 is an enlarged detail view of FIG. 2;

FIG. 4 is an enlarged rear perspective view of the cable managementassembly shown in FIG. 2;

FIG. 5 is a rear perspective view of one embodiment of a cablemanagement device shown in FIG. 2;

FIG. 6 is an enlarged front perspective view of another embodiment of acable management assembly shown in FIG. 1;

FIG. 7 is an enlarged detail view of FIG. 6;

FIG. 8 is an enlarged rear perspective view of the cable managementassembly shown in FIG. 6;

FIG. 9 is an enlarged front perspective view of still another embodimentof a cable management assembly shown in FIG. 1;

FIG. 10 is an enlarged detail view of FIG. 9;

FIG. 11 is an enlarged rear perspective view of the cable managementassembly shown in FIG. 9;

FIG. 12 is a rear perspective view of one embodiment of a cablemanagement device shown in FIG. 9;

FIG. 13 is an enlarged rear perspective view of yet another embodimentof a cable management assembly shown in FIG. 1;

FIG. 14 is an enlarged rear perspective view of the cable managementassembly shown in FIG. 13;

FIG. 15 is an enlarged rear elevational view of still another embodimentof a cable management assembly shown in FIG. 1;

FIG. 16 is a rear perspective view of one embodiment of a cablemanagement device that can be used with the cable management assemblyshown in FIG. 15;

FIG. 17 is a front perspective view of the cable management assemblyshown in FIG. 1, illustrating various embodiments of cable managementdevices; and

FIG. 18 is a perspective view of another embodiment of a cablemanagement system in accord with the principles of the presentdisclosure.

DETAILED DESCRIPTION

Reference will now be made in detail to exemplary aspects of the presentdisclosure that are illustrated in the accompanying drawings. Whereverpossible, the same reference numbers will be used throughout thedrawings to refer to the same or like parts.

One embodiment of a telecommunications system 100 for managing cablesinterconnected to telecommunications components is illustrated inFIG. 1. The telecommunication system 100 includes a cable managementassembly 10 in accord with the principles disclosed. Cable managementassembly 10 illustrated in FIG. 1 is mounted between adjacent first andsecond telecommunication racks 12. In alternative embodiments, the cablemanagement assembly 10 can be used with other telecommunicationstructures to manage cables. For example, the cable management assembly10 can be mounted within a cabinet or within a termination panel.

Each of the illustrated telecommunication racks 12 of FIG. 1 generallyincludes a frame 102 having a first side column 104 and a second sidecolumn 108. The first side column 104 defines a first end 106 of thetelecommunications rack 12 and the second side column 108 defines asecond end 112 of the telecommunication rack 12.

The telecommunications racks 12 can be configured to receive a varietyof telecommunications components. For example, the racks 12 can holdfiber terminations panels 11 that hold fiber optic adapters 13. Cableswith terminating connectors (not shown) are connected together at theadapters 13.

The cable management assembly 10 includes a cable management structure14. The cable management structure can be referred to as a back plane,riser, or panel. The panel 14 includes an interface portion 16 and firstand second mounting structures 18, 20 configured to mount or couple thecable management assembly 10 to the adjacent telecommunications racks12. In one embodiment, as shown in FIG. 1, first and second mountingstructures 18, 20 include flanges 22 that extend generally outward fromthe interface portion 16. The flanges 22 can include mounting holes 23(FIG. 2) corresponding to mounting holes 15 formed along the sidecolumns 104, 108 of the telecommunications rack 12. Fasteners such asrivets or screws can be used to mount the panel 14 to thetelecommunications racks 12.

The first interface portion 16 of the panel has a front side 46 and aback side 48. A plurality of discrete openings 30 extends through theinterface portion from the front side 46 to the back side 48. Cablemanagement devices 50 secure to the panel 14 at the discrete openings30. The discrete openings 30 and the cable management devices 50 areconfigured and sized so that a user can organize and arrange cables (notshown) at various locations along the panel 14. In the preferredembodiment, the discrete openings 30 include shaped apertures 30configured and sized for receipt of the cable management devices 50.

One feature of the present disclosure relates to cost reductionassociated with fixed or custom-made cable management systems. Thepresent cable management assembly permits a user to configure the systemto a particular need. For example, in accord with the principlesdisclosed, a user has the flexibility to choose from a library ofdifferent cable management devices 50, each configured to secure to theriser or panel 14. The present system further provides flexibility inpermitting a user to position any of the different cable managementdevices 50 at a plurality of locations on the panel 14 of the cablemanagement assembly 10. In particular, the preferred panel 14 isconstructed to provide a plurality of placement coordinates (i.e.vertical and horizontal locations) from which a user may choose toposition the cable management devices. Thus, with this design, a user isnot limited to a pre-made, fixed cable management system, which may notfit a particular need. Similarly, with this design, the user reduces oreliminates modification and customizing costs associated with reworkinga system to fit the particular need.

Another feature of the present system relates to the system'sadaptability and ease of use. In one embodiment, the cable managementdevices 50 are detachably secured to the riser or panel 14. This featurepermits a user to modify a system's cable management strategy toaccommodate growth or changes needed in a quickly changing industry.

Referring now to FIGS. 2-5, a first embodiment of the cable managementassembly 10 is illustrated. In this first embodiment, the panel 14includes a first embodiment of shaped apertures 30 configured to securethe cable management devices 50 to the interface portion 16 of thepanel.

As shown in FIG. 3, the shaped apertures 30 have a keyhole-likeconfiguration including a first receiving aperture portion 32, a secondnotch aperture portion 34, and a slide aperture portion 36. The slideaperture portion 36 extends diagonally between the receiving apertureportion 32 and the notch aperture portion 34. The receiving apertureportion 32 has a first diameter d1. The notch aperture portion 34 has asecond diameter d2. In this embodiment, the second diameter d2 of thenotch aperture portion 34 is less than the first diameter d1 of thereceiving aperture portion 32. The shaped apertures 30 are oriented andformed within the panel 14 such that the receiving aperture portion 32is vertically located above, and laterally offset from, the notchaperture portion 34.

Referring back to FIG. 2, the shaped apertures 30 are arranged in anarray of vertical columns 40 and horizontal rows 42. In this illustratedembodiment, the panel 14 includes five vertical columns 40 of shapedapertures 30. Other embodiments having more or less columns or rows ofshaped apertures are contemplated. Preferably, the shaped apertures 30are arranged in a pattern that provides a user flexibility in placingand positioning the cable management devices 50 along the panel 14. Inan alternative embodiment the shaped apertures 30 may be more randomlyformed in the panel 14.

Still referring to FIG. 2, the notch aperture portion 34 of the shapedapertures 30 is oriented downwardly from the receiving aperture portion32. In viewing the embodiment in FIG. 2, the shaped apertures 30 of themost rightward vertical column 40 slants downward toward the right, fromthe receiving aperture portion 32 to the notch aperture portion 34. Theshaped apertures 30 of the remaining four vertical columns 40 slantdownward toward the left. This configuration permits a user to utilizethe entire width of the panel 14 in placing and positioning cablemanagement devices 50. As will be described in greater detail, thisconfiguration permits installation of the cable management devices 50 oneither the right-hand side of the panel or the left-hand side of thepanel without interference with side columns 104, 108 (FIG. 1) of thetelecommunication racks 12.

In general, the cable management devices 50 of the present disclosureare configured to insert within any of the shaped apertures 30 toprovide a variety of cable management arrangements or configurations fordifferent applications. Exemplary cable management devices 50 a-50 h areshown in FIGS. 17 and 18, and will be described in greater detailhereinafter. One of the exemplary cable management devices 50, as shownin FIG. 2, is a spool 50 a. It is to be understood that the spool 50 a,and the other illustrated devices 50 a-50 h, are only examples of thevariety of types of cable management devices that can be used in accordwith the principles disclosed.

FIG. 5 illustrates one embodiment of the exemplary spool 50 a. The spool50 a includes a spool body 64 extending between first and second ends66, 68. A cable retainer 70 is located at the second end 68 of the spoolbody 64.

Each of the cable management devices 50 of the present disclosureincludes a connection 80 configured to secure the device 50 to the panel14. In the embodiment shown in FIG. 5, the connection 80 includes firstand second attachments 72, 74 that correspond to the shaped apertures 30shown in FIGS. 2 and 3. As shown, the first and second attachments 72,74 are protrusions or pin connections 82, 84. The first and second pinconnections 82, 84 each have a primary diameter D1. The primary diameterD1 of the first and second pin connections 82, 84 corresponds to thediameter d1 of the receiving aperture portions 32 of each of the shapedapertures 30.

The first pin connection 82 is positioned in vertical alignment with thesecond pin connection 84 (axis A-A). This positioning is advantageous oncable management devices 50 that can be used in an upward orientationand a downward orientation. That is, the arrangement of the first andsecond pin connections 82, 84 permits a user to secure the device 50with the first pin connection 82 positioned towards the top of the panel14; or turn the device one-hundred and eighty degrees and secure thedevice 50 with the first pin connection 82 positioned towards the bottomof the panel. It is contemplated that, in addition, the device 50 may beconfigured to also turn ninety degrees and secure to shaped apertures 30within a single row, with the first pin connection 82 positioned towardseither side of the panel.

Each of the first and second pin connections 82, 84 includes a neck orannular groove 86, 88. The grooves 86, 88 are located between theprimary diameter D1 of the pin connections 82, 84 and the first end 66of the spool body 64. The grooves 86, 88 have an outer diameter D2. Thediameter D2 of each groove is less than the primary diameter D1, andcorresponds to the diameter d2 of the notch aperture portion 34 of theshaped apertures 30.

FIG. 4 illustrates the installation of this first cable managementdevice embodiment 50 a. An upper device 50 a′ is shown partially mountedto the panel 14; a lower device 50 a″ is shown secured to the panel 14.In use, the cable management device 50 is secured to the panel 14 bypushing or inserting the first and second pin connections 82, 84 of thedevice 50 a′ into the receiving aperture portions 32 of a selected firstand second shaped aperture 30 a, 30 b. The cable management device isinserted into the shaped apertures 30 from the front side 46 of thepanel 14 toward the back side 48 of the panel. The device 50 a is thenmoved along the slide aperture portion 36 toward the notch apertureportion 34 (represented by the arrow) to a secured position, asillustrated by device 50 b. In general, the cable management device 50is designed to secure to the panel 14 by insertion into the panel fromone side, without the use of tools or extra fastening components.

When the device 50 is translated downward along the slide apertureportion 36 toward the notch aperture portion 34, the panel 14 becomesengaged in the grooves 86, 88 of the first and second pin connections82, 84. In other words, the cable management device 50 seats in thenotch aperture portion 34, the thickness of the panel 14 beingconfigured to fit between the primary diameter D1 of the pin connections82, 84 and the first end 66 of the device 50. When secured in thismatter, the cable management device 50 cannot be pulled or pushed out ofposition. Preferably the device 50 is detachably secured, i.e. can beslid or diagonally translated upward for removal.

The cable management device 50 illustrated in FIG. 5 can include atensioning component, such as spring washers 43. In an alternativeembodiment, the tensioning component can include a flexible tensioningleaf or tab 344, such as that shown in FIG. 12. The spring washer 43 andthe flexible tensioning tab 344 place the pin connections 82, 84 intension to assist in maintaining a secure engagement between the device50 and the panel 14.

Still referring to FIG. 4, a recess 38 can be formed on the backside ofthe panel 14, at least partially surrounding the notch aperture portion34 of the shaped holes 30. The recess 38 is preferably sized andconfigured to receive the primary diameter D1 of the pin connections 82,84 when the cable management device 50 is secured to the panel 14. Therecesses 38 assist in structurally supporting the pin connections 82, 84of the cable management device 50.

The groove 86 of the first pin connection 82 couples with the notchaperture portion 34 of a first shaped aperture 30 a, and the groove 88of the second pin connection 84 couples with the notch aperture portion34 of a second shaped aperture 30 b, when the cable management device issecured to the panel 14. In this configuration two shaped apertures 30are used to secure the device 50 to the panel 14. The first shapedaperture 30 a is positioned above the second shaped aperture 30 b in asingle vertical column 40 of shaped apertures.

It is contemplated that other arrangements using shaped apertures havinga spacing configuration other than above/below one another can be usedin accord with the principles disclosed. For example, the pinconnections 82, 84 can be oriented in horizontal alignment, rather thanvertical alignment, on the first end 66 of the spool body 64 such thatthe connection 82, 84 secure to two shaped apertures 30 in a singlehorizontal row; or the pin connection 82, 84 can be laterally andvertically offset to couple to shaped apertures 30 in different columns40 and different rows 42.

Referring now to FIGS. 6-8, a second embodiment of the cable managementassembly 210 is illustrated. In this embodiment, the panel 214 includesa second embodiment of shaped apertures 230 configured to secure thecable management devices 250.

As shown in FIG. 7, the shaped apertures 230 have a keyhole-likeconfiguration including a first receiving aperture portion 232, a secondnotch aperture portion 234, and a slide aperture portion 236. The slideaperture portion 236 extends between the receiving aperture portion 232and the notch aperture portion 234. The receiving aperture portion 232has a first diameter d3. The notch aperture portion 234 has a seconddiameter d4. In this embodiment, the second diameter d4 of the notchaperture portion 234 is less than the first diameter d3 of the receivingaperture portion 232. The shaped apertures 230 are oriented and formedwithin the panel 14 such that the receiving aperture portion 232 isvertically aligned with the notch aperture portion 34.

Referring back to FIG. 7, the shaped apertures 230 are arranged in anarray of vertical columns 240 and horizontal rows 242. In thisillustrated embodiment, the panel 214 includes nine vertical columns 240of shaped apertures 230.

The exemplary cable management device 250 of this embodiment is similarto the previous spool embodiment including a spool body 264 extendingbetween first and second ends 266, 268 and a cable retainer 270. Asshown in FIG. 8, the connection 280 of this embodiment is configured tosecure the device 250 to the panel 214. In the illustrated embodiment,the connection 280 includes first and second attachments 272, 274 thatcorrespond to the shaped apertures 230. As shown, the first and secondattachments 272, 274 are protrusions or pin connections 282, 284. Thefirst and second pin connections 282, 284 each have a primary diameterD3. The primary diameter D3 of the first and second pin connections 282,284 corresponds to the diameter d3 of the receiving aperture portions232 of each of the shaped apertures 230.

Each of the first and second pin connections 282, 284 also includes aneck or annular groove (e.g. 286). The grooves are located between theprimary diameter (e.g. D3) of the pin connections 282, 284 and the firstend 266 of the spool body 264. The grooves have an outer diameter (e.g.D4). The diameter D4 of each groove 286 is less than the primarydiameter D3 of the pin connections, and corresponds to the diameter d4of the notch aperture portion 234 of the shaped apertures 230 (FIG. 7).

Still referring to FIG. 8, the cable management device 250 is secured tothe panel 214 by pushing or inserting the first and second pinconnections 282, 284 of the device 250 a′ into the receiving apertureportions 232 of a selected first and second shaped aperture 230 a, 230b. The cable management device is inserted into the shaped aperture 230from the front side 246 of the panel 214 toward the back side 248 of thepanel. The device 250 is then moved down the slide aperture portion 236toward the notch aperture portion 234 (represented by the arrow) to asecured position, as shown by device 250 a″.

When the device 250 is translated downward toward the notch apertureportion 234, the panel 214 becomes engaged in the grooves of the firstand second pin connections 282, 284. In other words, the cablemanagement device 250 seats in the notch aperture portion 234, thethickness of the panel 214 being configured to fit between the primarydiameter D3 of the pin connections 82, 84 and the first end 266 of thedevice 250. When secured in this matter, the cable management device 250cannot be pulled or pushed out of position. Preferably the device 250 isdetachably secured, i.e. can be slid vertically upward for removal.

A recess 238 (FIG. 7) can be formed on the backside of the panel 214, atleast partially surrounding the notch aperture portion 234 of the shapedholes 230. The recess 238 is preferably sized and configured to receivethe primary diameter D3 of the pin connections 282, 284 when the cablemanagement device 250 is secured to the panel 214.

The groove of the first pin connection 282 couples with the notchaperture portion 234 of a first shaped aperture 230 a, and the groove ofthe second pin connection 284 couples with the notch aperture portion234 of a second shaped aperture 230 b, when the cable management deviceis secured to the panel 214. In this configuration two shaped apertures230 are used to secure the device 250 to the panel 214. The first shapedaperture 230 a is positioned above the second shaped aperture 230 b in asingle vertical column 240 of shaped apertures.

It is contemplated that other arrangements using shaped apertures havinga spacing configuration other than above/below one another can be usedin accord with the principles disclosed. For example, the pinconnections 282, 284 can be oriented in horizontal alignment, ratherthan vertical alignment, on the first end 266 of the spool body 264 suchthat the connection 282, 284 secure to two shaped apertures 230 in asingle horizontal row; or the pin connection 282, 284 can be laterallyand vertically offset to couple to shaped apertures 230 in differentcolumns 240 and different rows 242.

Referring now to FIGS. 9-12, a third embodiment of the cable managementassembly 310 is illustrated. In this embodiment, the panel 314 includesa third embodiment of shaped apertures 330 configured to secure thecable management devices 350.

Similar to the first embodiment, the shaped apertures 330 of FIG. 10include a first receiving aperture portion 332, a second notch apertureportion 334, and a slide aperture portion 336. The slide apertureportion 336 extends between the receiving aperture portion 332 and thenotch aperture portion 334. The receiving aperture portion 332 has afirst diameter d5. The notch aperture portion 334 has a second diameterd6. In this embodiment, the second diameter d6 of the notch apertureportion 334 is less than the first diameter d5 of the receiving apertureportion 332. The shaped apertures 330 are oriented and formed within thepanel 314 such that the receiving aperture portion 332 is verticallylocated above, and laterally offset from, the notch aperture portion334.

Similar to the previous embodiment, the shaped apertures 330 arearranged in an array of vertical columns 340 and horizontal rows 342. Inviewing the embodiment in FIG. 9, the shaped apertures 330 of the mostrightward vertical column 340 slants downward toward the right, from thereceiving aperture portion 332 to the notch aperture portion 334. Theshaped apertures 330 of the remaining four vertical columns 340 slantdownward toward the left.

Referring now to FIG. 12, the connection 380 of the illustrated cablemanagement device embodiment 350 is also configured to secure the device350 to the panel 314. The connection 380 includes first and secondattachments 372, 374 that correspond to the shaped apertures 330 shownin FIGS. 9 and 10. As shown in FIG. 12, the first and second attachments372, 374 are protrusions or pin connections 382, 384 positioned in alaterally offset orientation to one another (as represented by axisB-B). The first and second pin connections 382, 384 each have a primarydiameter D5. The primary diameter D5 of the first and second pinconnections 382, 384 corresponds to the diameter d5 of the receivingaperture portions 332 of each of the shaped apertures 330.

The first pin connection 382 in the illustrated embodiment includes aneck or annular groove 386. The groove 386 is located between theprimary diameter D5 of the first pin connection 382 and the first end366 of the spool body 364. The groove 386 has an outer diameter D6. Theouter diameter D6 of the groove is less than the primary diameter D5,and corresponds to the diameter d6 of the notch aperture portion 334 ofthe shaped aperture 330.

FIG. 11 illustrates the installation of this cable management device. Anupper device 350 a′ is shown partially mounted to the panel 314; a lowerdevice 350 a″ is shown secured to the panel 314. In use, the cablemanagement devices 350 are secured to the panel 314 by pushing orinserting the first and second pin connections 382, 384 of the device350 a into the receiving aperture portions 332 of a selected first andsecond shaped aperture 330 a, 330 b. The cable management device isinserted into the shaped aperture 330 from the front side 346 of thepanel 314 toward the back side 348 of the panel. The device 350 a isthen twisted or rotated (as represented by the arrow) to a securedposition, as illustrated by device 350 b.

When the device 350 is rotated, the groove 386 of the first pinconnection 382 slides along the slide aperture portion 336 of the shapedaperture 330. Because of the larger sized primary diameter D5 of thesecond pin connection 384, the second pin connection 384 remains fixed(i.e. does not translate, but does rotate) within the receiving apertureportion 334. The device 350 continues to rotate until the groove 386 ofthe first pin connection 382 reaches the notch aperture portion 334 (seedevice 350 b). In this position, the panel is engaged in the groove 386of the first pin connection 382 between the primary diameter D5 of thepin connection 382 and the first end 366 of the device 350. When securedin this matter, the device 350 cannot be pulled or pushed out ofposition. Preferably the device 350 is detachably secured, i.e. can berotated in an opposite direction for removal.

The cable management device 350 illustrated in FIGS. 9-12 includes aflexible tensioning tab 344 (FIG. 12). The flexible tensioning tab 344extends outwardly from the first end 366 of the device 350 and contactsthe riser or panel 314 when the cable management device 350 is securedto the panel 314. The flexible tensioning tab 344 places the pinconnections 382, 384 in tension to assist in maintaining a secureengagement between the device and the panel.

As shown in FIG. 11, a recess 338 can be formed on the backside of thepanel 314, at least partially surrounding the notch aperture portion 334of the shaped holes 330. The recess 338 is preferably sized andconfigured to receive the primary diameter D5 of the pin connections382, 384 when the cable management device 50 is secured to the panel314. The recesses 338 assist in structurally supporting the pinconnections 382, 384 of the cable management device 350.

The groove 386 of the first pin connection 382 couples with the notchaperture portion 334 of the first shaped aperture 330 a and the secondpin connection 384 couples with the receiving aperture portion 332 ofthe second shaped aperture 330 b when the cable management device issecured to the panel 314. In this configuration, two shaped apertures330 are used to secure the device 350 to the panel 314. The first shapedaperture 330 a is positioned above the second shaped aperture 330 b in asingle column 340 of shaped apertures. It is contemplated that otherarrangements using shaped apertures having a spacing configuration otherthan above/below one another can be used in accord with the principlesdisclosed.

As can be understood with regards to the first and third embodimentsherein disclosed, the shaped apertures (e.g. 30, 330) in the outermostvertical columns (e.g. 40, 340) are oppositely oriented. This is topermit, for example, a user to position a cable management device (e.g.50, 350) in either the leftmost column or the rightmost column and slideor rotate the device toward the center of the panel to avoidinterference with the rack 12.

Referring now to FIGS. 13 and 14, yet another embodiment of the cablemanagement assembly 410 is illustrated. In this fourth embodiment, thepanel 414 includes another embodiment of shaped apertures 430 configuredto secure the illustrated cable management devices 450. In thisembodiment, the shaped apertures 430 include first and second opposingedges 457, 459 and third and fourth opposing edges 461, 463. In theillustrated embodiment the edges define a square shaped aperture 430.Other geometrically shaped apertures, such as rectangular shapedapertures, are contemplated. Similar to the previous embodiments, theshaped apertures 430 are arranged in an array of vertical columns 440and horizontal rows 442.

Referring to FIG. 13, the connection 480 of the cable management device450 is also configured to secure the device 450 to the panel 414. Thecable management device 450 is a spool device 450 a including a firstend 466 and a second end 468. A spool body 464 extends between the firstand second ends 466, 468. The connection 480 includes first and secondattachments 472, 474 that correspond to the shaped apertures 430. Thefirst and second attachments 472, 474 include hooked connections 482,484 positioned in an aligned orientation to one another (as representedby axis C-C).

In use, the cable management device 450 is secured to the panel 414 byinserting the first and second hooked connections 482, 484 of the device450 a′ into selected first and second shaped apertures 430 a, 430 b. Thecable management device is inserted into the shaped apertures the frontside 446 of the panel 414 toward the back side 448 of the panel. Thedevice 450 is then hooked over the first edge 457 that partially definesthe shaped aperture 430 in the panel 414. When secured in this matter,the device 450 a″ cannot be pulled or pushed out of position. Preferablythe device 550 is detachably secured, i.e. can be lifted from the firstedge 457 for removal.

In this configuration two shaped apertures 430 are used to secure thedevice 450 to the panel 414. The first shaped aperture 430 a ispositioned above the second shaped aperture 430 b in a single column 440of shaped apertures. It is contemplated that other arrangements usingshaped apertures having a spacing configuration other than directlyabove/below one another can be used in accord with the principlesdisclosed.

Referring now to FIGS. 15 and 16, a fifth embodiment of the cablemanagement assembly 510 is illustrated. In this embodiment, the panel514 includes still another embodiment of shaped apertures 530 configuredto secure the cable management devices 550.

The shaped apertures 530 include a primary aperture portion 533, a pairof insertion notches 535, and a pair of release notches 537. A rampedsurface 539 interconnects the insertion notches 535 and the releasenotches 537. The primary aperture portion 533 has a first diameter d7.The pairs of insertion notches and release notches 535, 537 extendradially outwardly from the primary aperture portion 533 a distance r1,r2. The distance r2 that the release notches 537 extend from the primaryaperture portion 533 is greater than the distance r1 that the insertionnotches 537 extend from the primary aperture portion 533. The shapedapertures 530 are arranged in an array of vertical columns 540 andhorizontal rows 542.

Referring now to FIG. 16, the connection 580 of the cable managementdevice embodiment 550 is also configured to secure the device 550 to thepanel 514. The connection 580 of this spool device 550 a includes afirst attachment 573 that corresponds to the shaped apertures 533 shownin FIG. 15. As shown in FIG. 16, the first attachment 573 is a snap-inprotrusion or connection 583 centrally positioned at the first end 566of the spool body 564. The first snap-in connection 583 includes a pinbody 577 with flexible tabs 579.

In use, the cable management device 550 a″ (FIG. 15) is secured to thepanel 514 by aligning the flexible tabs 579 of the device with theinsertion notches 535 of a selected shaped aperture 530, and pushing orinserting the first snap-in connection 583 of the device 550 a″ into theshaped aperture 530. The cable management device is inserted into theshaped aperture 530 from the front side 546 of the panel 514 toward theback side 548 of the panel. The flexible tabs 579 of the device 550 flexinward during insertion and snap outward when an edge 581 passes throughthe insertion notch 535 of the shaped aperture 530. The panel 514 isthen secured between the first end 566 of the device 550 and the edge581 of the connection 580. When secured in this matter, the device 550cannot be pulled or pushed out of position. In this configuration, onlyone shaped aperture 530 is used to secure the device 550 to the panel514.

Preferably the device 550 is detachably secured. In particular, thedevice 550 can be removed by rotating the device 550 a′″ within theshaped aperture 530 (as shown by the arrow). As the device is rotated,the flexible tabs 579 contact the ramped surfaces 539 of the shapedaperture 530. The ramped surfaces 539 push or flex the tabs 579 inwardas the device is rotated. When the tabs are aligned with the releasenotches 537, the tabs snap outward. The release notches are sized andconfigured so that the tabs 579, and the device 550, can be removed bypulling the device outward through the release notches 537.

As can be understood with regards to all embodiments, the panel (e.g.14) of the presently disclosed embodiments can include a single panelconstruction that extends along the vertical length of the racks 12, asshown in FIG. 1. In an alternative embodiment, as shown in FIG. 2, thepanel can include one or more sections 28 that form the panel 14. Thepanel 14 includes a length L and a width W (FIG. 1). In the illustratedembodiments, the length L of the panel 14 extends substantially from thetop of the rack 12 to the bottom of the rack. In other embodiments, thepanel may only extend partially along the height of the rack 12.

The width W of the panel 14 is configured to extend between a gap in theracks 12. The width W of the panel 14 can be within the range of 2inches to 18 inches, inclusively. Preferably the width W of the panel isbetween about 5 inches and 12 inches.

FIG. 17 illustrates some of a variety of cable management devices 50that can be used in accord with the principles disclosed. The spool 50 ais one of the cable management devices 50, previously described indetail. The spools can be of varying sizes and may be used to wrap andhold excess cabling. Other cable management devices 50 can include, forexample, cable guides 50 b that contain or guide cabling; tie-offbrackets 50 c to which cabling can be secured; finger devices or edgeprotections 50 d to organize and protect cable that is routing betweenthe panel 14 and components mounted on the telecommunications racks 12(FIG. 1); channel guides 50 e that contain cabling; and radius limiters50 f configured to limit the bend radius of stored cabling. Further,other types of cable management devices 50 may include cable terminationdevices (not shown) for terminating fiber optic or ribbon cables at thepanel 14, or flip-out trays (not shown) to store cabling slack.

As shown in FIG. 17, the cable management devices 50 and the panels 14are configured to permit a user to position any of the different cablemanagement device 50 at any location on the panel 14 of the cablemanagement assembly 10. In this illustration, the second panelembodiment 214 is illustrated, however, it is to be understood that thisillustration encompasses the principles of each of the disclosed panelembodiments and associated devices.

The devices 50 can be placed at any placement coordinate on the panel14. In addition, the devices can also be positioned in variousorientations, such as illustrated by the opposing radius limiters 50 foriented one-hundred and eighty degrees relative to one another. Bythis, a user may select one or more devices from a library of devicesand position the devices as desired to configure the system to meet aparticular need.

Referring now to FIG. 18, another embodiment of the cable managementsystem 100′ is illustrated. In this embodiment, the cable managementassembly 10′ includes an end-rack panel 14′ having first, second andthird interface portions 16 a, 16 b, 16 c. In this embodiment, theend-rack panel 14′ is mounted to columns 104, 108 of a single standingtelecommunications rack 12, or to an end column (104 or 108) of atelecommunications rack located at the end of a series of racks.

The end-rack panel 14′ provide a user with three interface portions 16a-c having a plurality of discrete openings (not shown for purposes ofclarity) to which various cable management devices 50 can be detachablysecured. Preferably the discrete openings include shaped apertures. Thethree interface portions 16 a-c in the illustrated embodiment form achannel-like configuration. Large cables can be routed through thischannel-like configuration through a top or bottom opening 96, 98. Largeaccess holes (not shown) can be formed in the end-rack panel 14′ throughwhich cabling can be routed.

The cable management system 100′ of FIG. 18 is illustrated with variouscable management devices, such as spools 50 a and cable channel guides50 e. FIG. 18 also illustrates some additional cable management devicesthat can be used with the cable management assemblies 10, 10′ disclosed,including a cable retainer 50 g and another embodiment of a radiuslimiter or edge protector 50 h.

The above specification provides a complete description of the cablemanagement assembly, system, and method. Since many embodiments of theinvention can be made without departing from the spirit and scope of theinvention, the invention resides in the claims hereinafter appended.

What is claimed is:
 1. A telecommunications cable management system,comprising: (a) a first telecommunications rack and a secondtelecommunications rack, each of the racks including a frame having sidecolumns, adjacent side columns of the first and secondtelecommunications racks defining a gap therebetween; (b) a cablemanagement assembly coupled to the adjacent side columns of the firstand second telecommunications racks, the cable management assemblyincluding an interface plane that extends across the gap defined betweenthe adjacent side columns of the first and second telecommunicationsracks, the interface plane having an aperture pattern that includessquare-shaped apertures; and (c) a plurality of cable management deviceseach having integral attachments, the integral attachments includingfirst and second hooks arranged to engage two separate square-shapedapertures of the pattern; (d) wherein the cable management devicessecure to the interface plane by only the integral attachments, andwherein the cable management devices are removable from the interfaceplane without the use of a tool, and without having to access a backsideof the interface panel; (e) wherein the plurality of cable managementdevices includes different types of cable management devices including:(i) at least one cable guide including a plurality of projecting cablemanagement fingers arranged vertically; (ii) at least one cable channelguide defining a vertical cable channel; (iii) at least one cable radiuslimiter defining a half cylindrical surface configured to limit the bendradius of stored cabling.
 2. The telecommunications cable managementsystem of claim 1, wherein the pattern includes rows of square-shapedapertures.
 3. The telecommunications cable management system of claim 2,wherein the two separate square-shaped apertures that engage with thefirst and second hooks are located in different rows of square-shapedapertures.
 4. The telecommunications cable management system of claim 1,wherein the pattern includes columns and rows of square-shapedapertures.
 5. The telecommunications cable management system of claim 1,wherein the cable management device includes a spool.
 6. Thetelecommunication cable management system of claim 1, wherein theaperture pattern extends along a majority of a length and across amajority of a width of the interface plane.
 7. The telecommunicationscable management system of claim 1, wherein the cable managementassembly includes flanges oriented perpendicular to the interface plane,the flanges defining holes for coupling the assembly to the adjacentside columns of the first and second telecommunications racks.
 8. Thetelecommunications cable management system of claim 1, wherein the widthof the interface plane is between 2 and 18 inches.
 9. Thetelecommunications cable management system of claim 1, wherein the twoseparate square-shaped apertures that engage with the first and secondhooks are vertically aligned.